How It Works Services About Contact
Kirubakaran Athmanathan

The Technical Person
in Your Corner

Hiring a developer or an agency? Managing one and not sure the work is good? Facing a technical decision you can't fully evaluate yourself?
Get independent advice from an engineer with 25+ years of experience.

Three Ways to Work With Me

Second Opinion

$750
One structured session on one decision, with a written summary you can act on.
  • 90-minute video call, after I've reviewed what you send
  • Direct, honest assessment
  • 1-page written summary within 48 hours
  • No ongoing obligation
Best for: a developer's proposal or quote you can't judge, a candidate to vet, a build-vs-buy call, an architecture or AI-stack choice.

Technical Advisor

Monthly retainer
A few hours a week as the technical person on your side of the table.
  • Write the job post and the statement of work
  • Vet developers, designers, and agencies with you
  • Review what gets delivered, before you pay for it
  • Sit in on the technical conversations you'd rather not have alone
Best for: a business owner hiring or managing developers without a technical cofounder.

Fractional CTO

Scoped per engagement
When you need someone to own the technical side for a stretch, or to build the first version.
  • Architecture, hiring plan, and roadmap
  • Hands-on building where it moves the needle
  • Technical due diligence before a raise
Best for: a funded startup between technical leaders, or a first product that needs to exist before anyone can be hired to maintain it.

Every engagement starts with a session, so the first step is the same whichever you need. If you need implementation and I'm not the right fit, I'll refer you to engineers I trust.

Is This a Fit?

This is for you if…

  • ✓ You're about to hire a developer, a designer, or an agency, and you can't tell a good proposal from a bad one
  • ✓ You already have one, and you're not sure whether what you're paying for is any good
  • ✓ You're a founder making a technical decision with real budget behind it
  • ✓ You want advice from someone on your side, not from someone bidding for the work
  • ✓ You want honest, direct feedback, even when the answer is "don't do that"

Not a fit if…

  • ✗ You're pre-idea and looking for someone to figure out what to build
  • ✗ You're shopping for the cheapest possible developer
  • ✗ You want daily Slack access or on-call availability
  • ✗ You're looking for validation rather than an objective assessment

Decisions That Get Expensive Fast

Most technical mistakes don't look like mistakes when you make them. They look like reasonable choices, until they compound.

Hiring on a vague statement of work

"Build me an app like X" is not a spec. Without one, every disagreement later is your word against the developer's, and you pay for the rework.

Nobody reviewing what the contractor delivered

Agencies optimize for billable hours. A demo that looks finished can hide a codebase that nobody else can maintain. Someone on your side should look before the final invoice.

Choosing the developer by the interview, not the work

Confident people interview well. A small paid trial task tells you more than three conversations, if you know what to look for in the result.

Overengineering for scale you don't have

Building for a million users when you have fifty. You burn budget solving problems that don't exist yet, and the simple version would have shipped months earlier.

Wrong AI stack lock-in

Choosing a framework, model provider, or vector database because it's in the news, not because it fits your use case. Switching costs are brutal.

Infrastructure overspend

Running Kubernetes and multi-region setups when a single managed instance would do. I've seen startups pay ten times what they need to.

No technical due diligence before a raise

Investors will ask. Better to find the gaps yourself than to have them surfaced in diligence.

What Clients Say

"We were in dire need to complete a proof-of-concept to demonstrate value and vision to both customers and investors. Kirubakaran stepped in, understood the intention, and executed fast. He helped us build exactly what we needed to prove traction and successfully raise our round."
Han Jing
Han Jing CEO, IrisMed
"Kirubakaran has been instrumental in designing products and architecting solutions. He takes deadlines very seriously. Most recently, he got a product done for a board presentation, and it received a standing ovation."
Anirban Kundu
Anirban Kundu CTO, Evernote
"Our traffic has tripled since we started working with Kirubakaran, and our customers are spending 40% more time in our app. I strongly recommend Kirubakaran for any project."
Kathy Kirkendall
Kathy Kirkendall Cofounder, POPin
"Kirubakaran jumped in and immediately got the project back on track. His work led to a key insight in the customer experience workflow and a 5x increase in sales conversions. Would definitely take any opportunity to work with him."
Robert Adams
Robert Adams Head of Engineering, ZeroCater

Recent engagements

Hiring

Helped a business owner hire a developer and a designer: wrote the job posts, vetted the candidates, structured the statement of work, and reviewed the delivered work before each payment.

Ongoing advisory engagement
Architecture

Helped a founder avoid ~$50K in projected infrastructure costs by correcting architecture assumptions before implementation began.

Single session
Rebuild

A software product for holiday-lighting installers was taking off and falling over daily. Rebuilt it on an architecture that could carry the growth, then handed it to a lower-cost team to maintain.

Holiday Home Concepts

About

I'm Kirubakaran Athmanathan. I've been building software for 25+ years, from microcontrollers to large-scale distributed systems, at startups and at companies like Walmart and Evernote. I'm a full-stack generalist: backend, frontend, infrastructure, data, and AI. I've led engineering teams, hired a lot of developers, helped startups raise rounds, and rescued projects that were off track.

For the last five years I've been CEO of histre, an AI-native knowledge management platform I built from the ground up. So I've hired and managed developers, made every technical call with my own money on the line, and sat on the other side of the table when someone was pitching me.

I live and work in San Francisco. I take on a limited number of engagements, so each client gets real attention.

How It Works

1

Intake

Book a session and fill out a short intake form. Send whatever you have: the proposal you received, the job post, a repo link, architecture notes, or just a list of questions. I review everything before we talk.

2

Session

We meet for 90 minutes on video. I walk through what you've shared, pressure-test the key assumptions, and tell you what I actually think.

3

Written summary, then your call

Within 48 hours you get a one-page summary: what I found, what I recommend, and what to do next. If you want me around for the hiring or the build, we talk about a retainer. If not, you have what you need.

Questions

I'm not technical. Is that a problem?

No, it's the usual case. Most of my clients are business owners who need a technical person they can trust, not a technical person they have to manage.

Do you build?

Mostly I advise, and I keep advice and implementation separate so the advice stays honest. I do take on builds and fractional-CTO engagements when it's the right fit. Ask.

What should I prepare?

Whatever you have. A proposal, a quote, a job description, a repo link, a pitch deck, or a clear description of the decision in front of you. The intake form will guide you. Don't over-prepare; I'll ask for what I need.

Can you sign an NDA?

Yes. Send it over before the session and I'll review and sign it.

Do you work with pre-seed founders?

If you have a real decision in front of you, yes: a first hire, a first build, an agency quote. If you're still validating the idea itself, it's probably too early.

Ready for a Second Opinion?

A hire, a proposal, or a technical decision on your plate? Let's talk.

Or email me directly: [email protected]